#ifndef _IGESToBRep_CurveAndSurface_HeaderFile #include #endif #ifndef _IGESData_IGESEntity_HeaderFile #include #endif #ifndef _ShapeExtend_WireData_HeaderFile #include #endif #ifndef _IGESData_HArray1OfIGESEntity_HeaderFile #include #endif #ifndef _IGESControl_IGESBoundary_HeaderFile #include #endif